Sea ice and atmospheric circulation shape the high-latitude lapse rate feedback
Abstract Arctic amplification of anthropogenic climate change is widely attributed to the sea-ice albedo feedback, with its attendant increase in absorbed solar radiation, and to the effect of the vertical structure of atmospheric warming on Earth’s outgoing longwave radiation. The latter lapse rate...
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Online Access: | http://dx.doi.org/10.1038/s41612-020-00146-7 https://www.nature.com/articles/s41612-020-00146-7.pdf https://www.nature.com/articles/s41612-020-00146-7 |
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crspringernat:10.1038/s41612-020-00146-7 2023-05-15T13:10:55+02:00 Sea ice and atmospheric circulation shape the high-latitude lapse rate feedback Feldl, Nicole Po-Chedley, Stephen Singh, Hansi K. A. Hay, Stephanie Kushner, Paul J. National Science Foundation DOE | LDRD | Lawrence Livermore National Laboratory U.S. Department of Energy 2020 http://dx.doi.org/10.1038/s41612-020-00146-7 https://www.nature.com/articles/s41612-020-00146-7.pdf https://www.nature.com/articles/s41612-020-00146-7 en eng Springer Science and Business Media LLC https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 CC-BY npj Climate and Atmospheric Science volume 3, issue 1 ISSN 2397-3722 Atmospheric Science Environmental Chemistry Global and Planetary Change journal-article 2020 crspringernat https://doi.org/10.1038/s41612-020-00146-7 2022-01-04T07:34:36Z Abstract Arctic amplification of anthropogenic climate change is widely attributed to the sea-ice albedo feedback, with its attendant increase in absorbed solar radiation, and to the effect of the vertical structure of atmospheric warming on Earth’s outgoing longwave radiation. The latter lapse rate feedback is subject, at high latitudes, to a myriad of local and remote influences whose relative contributions remain unquantified. The distinct controls on the high-latitude lapse rate feedback are here partitioned into “upper” and “lower” contributions originating above and below a characteristic climatological isentropic surface that separates the high-latitude lower troposphere from the rest of the atmosphere. This decomposition clarifies how the positive high-latitude lapse rate feedback over polar oceans arises primarily as an atmospheric response to local sea ice loss and is reduced in subpolar latitudes by an increase in poleward atmospheric energy transport. The separation of the locally driven component of the high-latitude lapse rate feedback further reveals how it and the sea-ice albedo feedback together dominate Arctic amplification as a coupled mechanism operating across the seasonal cycle. Article in Journal/Newspaper albedo Arctic Climate change Sea ice Springer Nature (via Crossref) Arctic npj Climate and Atmospheric Science 3 1 |
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Open Polar |
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Springer Nature (via Crossref) |
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crspringernat |
language |
English |
topic |
Atmospheric Science Environmental Chemistry Global and Planetary Change |
spellingShingle |
Atmospheric Science Environmental Chemistry Global and Planetary Change Feldl, Nicole Po-Chedley, Stephen Singh, Hansi K. A. Hay, Stephanie Kushner, Paul J. Sea ice and atmospheric circulation shape the high-latitude lapse rate feedback |
topic_facet |
Atmospheric Science Environmental Chemistry Global and Planetary Change |
description |
Abstract Arctic amplification of anthropogenic climate change is widely attributed to the sea-ice albedo feedback, with its attendant increase in absorbed solar radiation, and to the effect of the vertical structure of atmospheric warming on Earth’s outgoing longwave radiation. The latter lapse rate feedback is subject, at high latitudes, to a myriad of local and remote influences whose relative contributions remain unquantified. The distinct controls on the high-latitude lapse rate feedback are here partitioned into “upper” and “lower” contributions originating above and below a characteristic climatological isentropic surface that separates the high-latitude lower troposphere from the rest of the atmosphere. This decomposition clarifies how the positive high-latitude lapse rate feedback over polar oceans arises primarily as an atmospheric response to local sea ice loss and is reduced in subpolar latitudes by an increase in poleward atmospheric energy transport. The separation of the locally driven component of the high-latitude lapse rate feedback further reveals how it and the sea-ice albedo feedback together dominate Arctic amplification as a coupled mechanism operating across the seasonal cycle. |
author2 |
National Science Foundation DOE | LDRD | Lawrence Livermore National Laboratory U.S. Department of Energy |
format |
Article in Journal/Newspaper |
author |
Feldl, Nicole Po-Chedley, Stephen Singh, Hansi K. A. Hay, Stephanie Kushner, Paul J. |
author_facet |
Feldl, Nicole Po-Chedley, Stephen Singh, Hansi K. A. Hay, Stephanie Kushner, Paul J. |
author_sort |
Feldl, Nicole |
title |
Sea ice and atmospheric circulation shape the high-latitude lapse rate feedback |
title_short |
Sea ice and atmospheric circulation shape the high-latitude lapse rate feedback |
title_full |
Sea ice and atmospheric circulation shape the high-latitude lapse rate feedback |
title_fullStr |
Sea ice and atmospheric circulation shape the high-latitude lapse rate feedback |
title_full_unstemmed |
Sea ice and atmospheric circulation shape the high-latitude lapse rate feedback |
title_sort |
sea ice and atmospheric circulation shape the high-latitude lapse rate feedback |
publisher |
Springer Science and Business Media LLC |
publishDate |
2020 |
url |
http://dx.doi.org/10.1038/s41612-020-00146-7 https://www.nature.com/articles/s41612-020-00146-7.pdf https://www.nature.com/articles/s41612-020-00146-7 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
albedo Arctic Climate change Sea ice |
genre_facet |
albedo Arctic Climate change Sea ice |
op_source |
npj Climate and Atmospheric Science volume 3, issue 1 ISSN 2397-3722 |
op_rights |
https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1038/s41612-020-00146-7 |
container_title |
npj Climate and Atmospheric Science |
container_volume |
3 |
container_issue |
1 |
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1766245237358854144 |